Centrifugal Casting Alloy Indefinite Chilled Roll

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Centrifugal Casting Alloy Indefinite Chilled Roll

Indefinite chilled cast iron roll

The outer layer exhibits a remarkable mechanical performance and the quantity of graphite in the roll work layer remains basically unchanged along the depth, producing therefore no adverse effect on the decrease of hardness of work layer. The hardness of roll depends mainly on type of matrix (sorbite, bainite, martensite).

Centrifugal Casting Alloy Indefinite Chilled Roll

Mechanical properties

Hardness of shell               HSD60-85
Hardness of core               HSD35-48
Tensile Strength of core               ≥450MPa

Chemical properties

Material

Hardness (HSD)

C

Si

Mn

Ni

Cr

Mo

Indefinite I

60-70

3.0/3.5

0.5/1.0

0.5/1.0

0.5/1.0

0.5/1.0

0.2/0.6

Indefinite II

62-72

3.0/3.5

0.5/1.0

0.5/1.0

1.0/2.0

0.5/1.0

0.2/0.6

Indefinite III

65-75

3.0/3.5

0.5/1.0

0.5/1.0

2.0/3.0

0.7/1.2

0.2/0.6

Indefinite IV

70-80

3.0/3.5

0.5/1.0

0.5/1.0

3.0/5.0

1.0/2.0

0.2/0.6

Application

For continuous processing of strips and bars, pre-rolling of high-speed wires on front racks of finish roll mills for immediate or finish rolling of sections or for thin plate and straightening process.